.feedback1{
  position: fixed;
  width: 100vw;
  height: 100vh;
  background:rgba(1,1,1,.6);
  top: 0;
  z-index: 999;
  display:none;
}
.fk-main{
  position: absolute;
  background:#fff;
  width: 500px;
  height: 250px;
  border-radius: 10px;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
}
.fk-main h2{
  color: #000;
  font-size: 22px;
  font-weight: 500;
  text-align: center;
  margin-top: 60px;
}
#subtn{
  background:#409EFF;
  color: #fff;
  width: 100px;
  height: 40px;
  font-size: 14px;
  border: none;
  padding: 12px 20px;
  position: absolute;
  left: 0;
  right: 0;
  border-radius: 4px;
  top: 150px;
  margin: auto;
}